Home / 3,927.02-5,418.78-2,529.50

Finding the Fourth Proportional to 3,927.02, 5,418.78 and 2,529.50

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Solution

The fourth proportional to 3,927.02, 5,418.78 and 2,529.50 is: 3,490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.02 : 5,418.78 = 2,529.50 : x
  2. Step 2: Convert to fraction form
    3,927.02/5,418.78 = 2,529.50/x
  3. Step 3: Cross multiply
    3,927.02x = 5,418.78 × 2,529.50
  4. Step 4: Simplify right side
    3,927.02x = 13,706,804.01
  5. Step 5: Solve for x
    x = 13,706,804.01/3,927.02
  6. Step 6: Final answer
    x = 3,490.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.